LocaleToolbox is composed of 3 actions:

• GetBrowserLocale - returns the locale based on the user's browser default language. Can be used in a mobile application and in this scenario it will return the locale of the user's device.
• GetOSLocale - returns the locale installed with the operating system.
• GetServerLocale - returns the locale of the server where the application is running.

This can be used to get the user's locale and set it using the "SetCurrentLocal" action in a multi-language application. 

If the application is prepared to handle the returned locale, it will translate it, otherwise, it will stay as is.